From the doc: 'The newly designed Software Steganos Disk Encryption quickly and easily creates a virtual, encrypted drive. All your sensitive data is automatically encrypted using 128 Bit-Algorithmus AES (Advanced Encryption Standard) every time you save a document. 2GB of data is protected within less than 2 seconds, thanks to real-time encryption. Automatic Crash Protection guarantees that data is protected even if your computer crashes or if you are hit by a power failure. The secure drive can also be shared by colleagues who share a network.'